5540490061 has 2 divisors, whose sum is σ = 5540490062. Its totient is φ = 5540490060.

The previous prime is 5540490031. The next prime is 5540490071. The reversal of 5540490061 is 1600940455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5401368036 + 139122025 = 73494^2 + 11795^2 .

It is a cyclic number.

It is not a de Polignac number, because 5540490061 - 2¹⁹ = 5539965773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5540489999 and 5540490026.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5540490031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770245030 + 2770245031.

It is an arithmetic number, because the mean of its divisors is an integer number (2770245031).

Almost surely, 2^5540490061 is an apocalyptic number.

It is an amenable number.

5540490061 is a deficient number, since it is larger than the sum of its proper divisors (1).

5540490061 is an equidigital number, since it uses as much as digits as its factorization.

5540490061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 5540490061 is about 74434.4682321302. The cubic root of 5540490061 is about 1769.4952182872.

The spelling of 5540490061 in words is "five billion, five hundred forty million, four hundred ninety thousand, sixty-one".